DESCRIPTION

  • Silent check valves were developed to eliminate water hammer due to water flow reversal in clear water pump applications
  • Vertical and horizontal mounting
  • Valve opens when upstream pressure exceeds downstream pressure by 1/4 to 1/2 psi
  • An internal spring closes valve just prior to an equalizing pressure on both sides providing a quiet and shock less valve closing
  • Maximum recommended flow velocity for all valves is 12' per second
  • Wafer style valve body is cast iron, seat ring is aluminum bronze, seat/seat seal are EPDM, aluminum bronze bushing and disc, with SS spring and hardware
  • The wafer style is rated 200 psi for all models sizes

FNW 681 8 in. Epoxy Coated Cast Iron Wafer Check Valve

FNW681X

Manufacturer Part #: FNW681X

Valve Size:

SPECIFICATIONS

ADA Compliant
No
ANSI Specifications
ANSI B16.1
Coating
Epoxy
Collection
681
End Connection 2
Wafer
End Connections
Wafer
Installation Type
Horizontal Mount, Vertical Mount
MSS Specifications
MSS SP-6
Maximum Pressure
200 psi
Maximum Temperature
176
Valve Disc Material
Aluminum, Bronze
Valve Seat Material
EPDM
Valve Type
Check Valve

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